Loudspeaker



FIG. 1 is a top perspective view of a loudspeaker showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The evenly spaced broken lines and unshaded areas show unclaimed subject matter only and form no part of the claimed design. The dot-dash-dot broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines depict environment; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a loudspeaker, as shown and described. 